572R Pipelayer Power Train Caterpillar

Disassembly Procedure

Start By:

1. Remove the idlers. Refer to Disassembly and Assembly, "Idler - Remove" for the correct procedure.

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Illustration 1	g00616829

1. Use a slow drill and a 12.7 mm (0.50 inch) drill bit to remove plug (4) and stopper (3) from the end of the shaft.

Note: The shaft will be able to fall when the retainers are removed.

2. Remove the washers, eight bolts (2), and retainer (1) from each side of the idler.

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Illustration 2	g00616832

3. Remove O-ring seal (6) from retainer (1) .

Note: If the Duo-cone seals will be reused, put identification marks on the seals. This will allow the seals to be assembled and installed in the original position.

4. Put identification marks on Duo-cone seal (5). Remove Duo-cone seal (5) from retainer (1) .

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Illustration 3	g00616833

5. Put identification marks on Duo-cone seal (7). Remove Duo-cone seal (7) and toric stabilizer (9) from each side of shaft (8) .

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Illustration 4	g00616843

6. Remove washer (10) from both ends of shaft (8) .

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Illustration 5	g00616846

7. Pull shaft (8) out of the idler so that the hoist can be fastened to the shaft.

8. Fasten a hoist to shaft (8). Remove the shaft from idler assembly (11). The weight of the shaft is 21 kg (46.3 lb).